Make the typo resolution in r240441 apply to all function calls.

Regular function calls (such as to cabs()) run into the same problem
with handling dependent exprs, not just builtins with custom type
checking.

Fixes PR23775.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@240443 91177308-0d34-0410-b5e6-96231b3b80d8